Google Unveils Gemini 4 Argon With 1M-Token Output, Rolling Out Gradually

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Google DeepMind announced Gemini 4 Argon on September 30, 2026, positioning it for complex software engineering, knowledge work, and defensive cybersecurity. Its standout specification is an output limit of up to 1 million tokens, raised from 64K, which could support long multi-step tasks. Access is initially limited to trusted cyber defenders and testers, with broader developer and enterprise availability still to come. Google reports a 77.9% score on DeepSWE v1.1 along with an introductory API price of $2 per million input tokens and $10 per million output tokens. The article cautions that these are publisher-reported figures, not a controlled head-to-head comparison with OpenAI's GPT-6.1 Sol.

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